[ML-General] linux networking questions

[david]

Appreciate the help, Hunter.  Is it not easy to have everything in the 
192.168.x.x address range?  (Mask 255.255.0.0?)  I can't remember any of 
this but bits and pieces...

My router and firewall to the outside world are set not to pass 
192.168.x.x out to the world (as such) but I'm using all bridges 
internally (but there may still be one brouter in the mix; not sure.)

Thanks,
David



On 10/05/2015 10:32 PM, Hunter Fuller wrote:
>
> The long and the short of it is subnet masking. Basically, in home 
> networking, your subnet mask is almost always 255.255.255.0 also known 
> as a /24 (slash 24). What this means is that the first three octets of 
> the IPs of two devices have to be the same before they can talk.
>
> Routers are capable of breaking this boundary, but of course your 
> router can only know about 192.168.1.0/24 <http://192.168.1.0/24> so 
> that won't help you.
>
> If the raspberry pi is handing out addresses in a different range then 
> you need to put your laptop in that range temporarily, log into the 
> pi, and reconfigure it to not do that. Unless you intend for it to 
> create its own separate network that is.
>
> On Oct 5, 2015 10:22 PM, "david" <ainut at knology.net 
> <mailto:ainut at knology.net>> wrote:
>
>     Seems like lately I've forgotten everything I've ever known. <sigh>
>
>     I need to be able to access subnets at home; everything is behind
>     a firewall to the Internet.
>
>     My PC's are all dhcp in the 192.168.1.x address space.
>
>     I'd like to be able to talk to other addresses from these PC's.
>
>     Specifically:
>     192.168.7.2 -- Beaglebone Black default IP Address works just fine.
>
>     but
>
>     192.168.10.1 -- particular RPi 2 address from downloaded image
>     does not.  Of course, that Pi is a wireless one, while if I turn
>     off the wireless and connect a house cable, it gets assigned
>     192.168.1.56 (for example) and that works fine.  BUT, the wifi
>     address is still not accessible unless I make the wifi laptop get
>     on the RPi 2 as it's dhcp server and then the laptop gets assigned
>     192.168.10.x. <sigh>  (Same for the Android tablet.)  How do I get
>     everything to play nice with each other?
>
>     Bought a NAS server and set it's address to 192.168.200.1 -- and
>     *nothing* in the house could see it until I changed it's address
>     to a 192.168.1.x.
>
>     Help, please.
>
>     Thanks,
>     David Merchant
>
>
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